Bumping gaia.json for 4 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/b109699f838a
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #24073 from KevinGrandon/bug_1066206_search_web_result_bookmark_test_debug

Debug test - Bug 1066206 - [Search] When user tried to add a Rocketbar result to the homescreen the page opens silently in the background

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https://hg.mozilla.org/integration/gaia-central/rev/a80b3b82ebdd
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1066206 - [Search] Add test case for bookmarking a web result r=alive

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https://hg.mozilla.org/integration/gaia-central/rev/16d6a4cac921
Author: James Lal <james@lightsofapollo.com>
Desc: Merge pull request #24539 from lightsofapollo/bug-1011016

Bug 1011016 - marketplace dev r=@RickyChien.

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https://hg.mozilla.org/integration/gaia-central/rev/8a51c6609e3f
Author: James Lal <james@lightsofapollo.com>
Desc: Bug 1011016 - marketplace dev
Bumping manifests a=b2g-bump